Thank you, Jamie, and thank you all for joining our call to discuss ARMOUR's second quarter 2022 results. This morning, I am joined by ARMOUR's Co-CEOs, Scott Ulm and Jeff Zimmer; and our Chief Investment Officer, Mark Gruber. By now, everyone has access to ARMOUR's earnings release, which can be found on ARMOUR's website, www.armourreit.com.
This conference call may contain statements that are not recitations of historical fact and, therefore, constitute forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. All such forward-looking statements are intended to be subject to the safe harbor protection provided by the reform act.
Actual outcomes and results could differ materially from the outcomes and results expressed or implied by the forward-looking statements. That would be due to the impact of many factors beyond the control of ARMOUR. Certain factors that could cause actual results to differ materially from those contained in the forward-looking statements are included in the Risk Factors section of ARMOUR's periodic reports filed with the Securities and Exchange Commission. Copies are available on the SEC's website at www.sec.gov.
All forward-looking statements included in this conference call are made only as of today's date and are subject to change without notice. We disclaim any obligation to update our forward-looking statements unless required to do so by law. Also, our discussion today may include reference to certain non-GAAP measures. A reconciliation of these measures to the most comparable GAAP measure is included in our earnings release, which can be found on ARMOUR's website. An online replay of this conference call will be available on ARMOUR's website shortly and will continue for 1 year.
Net interest margin for the quarter was 2.22%, an increase of 44 basis points compared to Q1 2022. ARMOUR's Q2 comprehensive loss related to common stockholders was $96.2 million, which includes $58.6 million of GAAP net loss. Distributable earnings available to common shareholders was $31.2 million. That's up 16.8% from Q1. On a per-share basis, that represents $0.29 per common share. That non-GAAP measure excludes gains or losses from security sales and early termination of derivatives as well as market value adjustments, but it does include TBA drop income. ACM, the company's external manager, continues to voluntarily waive $1.95 million of its management fee, which offsets Q2 operating expenses.
ARMOUR paid monthly common dividends of $0.10 per common share during the quarter and has announced dividends at that rate for July and August of 2022. Taken together with contractual dividends on the preferred stock, ARMOUR has made cumulative distributions to stockholders over $1.9 billion throughout its history.
On the capital markets front, ARMOUR took advantage of the brief sell-off in Q2 to repurchase 248,000 shares of common stock at an average cost of $6.23 per share. The existing repurchase authority stands at just under 8 million shares, which will allow us to take advantage when and if future market dislocations present similarly compelling opportunities.
The company also raised approximately $80 million worth of equity capital in Q2 by issuing 10.4 million shares of common stock at an average price of $7.65 per share through its at-the-market program. In July, the company raised an additional $28.5 million worth of equity capital with the issuance of about 4 million shares of common stock. Quarter-end book value was $7.25 per common share, down 10.7% from Q1 2022. Through the close of business on Tuesday, the 26th, we estimate that ARMOUR has picked up a nickel on book value at approximately $7.30 per common share. Liquidity remains strong at more than $650 million.
At June 30, 2022, ARMOUR's portfolio consisted of $6.7 billion of agency securities plus TBA positions, representing another $700 million or so and $600 million, plus or minus, of U.S. treasury securities. With the sale of our DUS portfolio, ARMOUR's legacy available-for-sale portfolio now represents less than 4% of total specified pool positions.
Now let me turn the call over to Co-Chief Executive Officer, Scott Ulm, who will discuss ARMOUR's portfolio position and current strategy in further detail. Scott?